refactor: replace fs with secureFs for improved file handling

This commit updates various modules to utilize the secure file system operations from the secureFs module instead of the native fs module. Key changes include:

- Replaced fs imports with secureFs in multiple route handlers and services to enhance security and consistency in file operations.
- Added centralized validation for working directories in the sdk-options module to ensure all AI model invocations are secure.

These changes aim to improve the security and maintainability of file handling across the application.

libs/types/src/settings.ts

@@ -14,42 +14,61 @@ export type { AgentModel };
 /**
  * ThemeMode - Available color themes for the UI
  *
- * Includes system theme and multiple color schemes:
+ * Includes system theme and multiple color schemes organized by dark/light:
  * - System: Respects OS dark/light mode preference
- * - Light/Dark: Basic light and dark variants
- * - Color Schemes: Retro, Dracula, Nord, Monokai, Tokyo Night, Solarized, Gruvbox,
- *   Catppuccin, OneDark, Synthwave, Red, Cream, Sunset, Gray
+ * - Dark themes (16): dark, retro, dracula, nord, monokai, tokyonight, solarized,
+ *   gruvbox, catppuccin, onedark, synthwave, red, sunset, gray, forest, ocean
+ * - Light themes (16): light, cream, solarizedlight, github, paper, rose, mint,
+ *   lavender, sand, sky, peach, snow, sepia, gruvboxlight, nordlight, blossom
  */
 export type ThemeMode =
-  | "light"
-  | "dark"
-  | "system"
-  | "retro"
-  | "dracula"
-  | "nord"
-  | "monokai"
-  | "tokyonight"
-  | "solarized"
-  | "gruvbox"
-  | "catppuccin"
-  | "onedark"
-  | "synthwave"
-  | "red"
-  | "cream"
-  | "sunset"
-  | "gray";
+  | 'system'
+  // Dark themes (16)
+  | 'dark'
+  | 'retro'
+  | 'dracula'
+  | 'nord'
+  | 'monokai'
+  | 'tokyonight'
+  | 'solarized'
+  | 'gruvbox'
+  | 'catppuccin'
+  | 'onedark'
+  | 'synthwave'
+  | 'red'
+  | 'sunset'
+  | 'gray'
+  | 'forest'
+  | 'ocean'
+  // Light themes (16)
+  | 'light'
+  | 'cream'
+  | 'solarizedlight'
+  | 'github'
+  | 'paper'
+  | 'rose'
+  | 'mint'
+  | 'lavender'
+  | 'sand'
+  | 'sky'
+  | 'peach'
+  | 'snow'
+  | 'sepia'
+  | 'gruvboxlight'
+  | 'nordlight'
+  | 'blossom';
 
 /** KanbanCardDetailLevel - Controls how much information is displayed on kanban cards */
-export type KanbanCardDetailLevel = "minimal" | "standard" | "detailed";
+export type KanbanCardDetailLevel = 'minimal' | 'standard' | 'detailed';
 
 /** PlanningMode - Planning levels for feature generation workflows */
-export type PlanningMode = "skip" | "lite" | "spec" | "full";
+export type PlanningMode = 'skip' | 'lite' | 'spec' | 'full';
 
 /** ThinkingLevel - Extended thinking levels for Claude models (reasoning intensity) */
-export type ThinkingLevel = "none" | "low" | "medium" | "high" | "ultrathink";
+export type ThinkingLevel = 'none' | 'low' | 'medium' | 'high' | 'ultrathink';
 
 /** ModelProvider - AI model provider for credentials and API key management */
-export type ModelProvider = "claude";
+export type ModelProvider = 'claude';
 
 /**
  * KeyboardShortcuts - User-configurable keyboard bindings for common actions
@@ -356,45 +375,45 @@ export interface ProjectSettings {
 
 /** Default keyboard shortcut bindings */
 export const DEFAULT_KEYBOARD_SHORTCUTS: KeyboardShortcuts = {
-  board: "K",
-  agent: "A",
-  spec: "D",
-  context: "C",
-  settings: "S",
-  profiles: "M",
-  terminal: "T",
-  toggleSidebar: "`",
-  addFeature: "N",
-  addContextFile: "N",
-  startNext: "G",
-  newSession: "N",
-  openProject: "O",
-  projectPicker: "P",
-  cyclePrevProject: "Q",
-  cycleNextProject: "E",
-  addProfile: "N",
-  splitTerminalRight: "Alt+D",
-  splitTerminalDown: "Alt+S",
-  closeTerminal: "Alt+W",
+  board: 'K',
+  agent: 'A',
+  spec: 'D',
+  context: 'C',
+  settings: 'S',
+  profiles: 'M',
+  terminal: 'T',
+  toggleSidebar: '`',
+  addFeature: 'N',
+  addContextFile: 'N',
+  startNext: 'G',
+  newSession: 'N',
+  openProject: 'O',
+  projectPicker: 'P',
+  cyclePrevProject: 'Q',
+  cycleNextProject: 'E',
+  addProfile: 'N',
+  splitTerminalRight: 'Alt+D',
+  splitTerminalDown: 'Alt+S',
+  closeTerminal: 'Alt+W',
 };
 
 /** Default global settings used when no settings file exists */
 export const DEFAULT_GLOBAL_SETTINGS: GlobalSettings = {
   version: 1,
-  theme: "dark",
+  theme: 'dark',
   sidebarOpen: true,
   chatHistoryOpen: false,
-  kanbanCardDetailLevel: "standard",
+  kanbanCardDetailLevel: 'standard',
   maxConcurrency: 3,
   defaultSkipTests: true,
   enableDependencyBlocking: true,
   useWorktrees: false,
   showProfilesOnly: false,
-  defaultPlanningMode: "skip",
+  defaultPlanningMode: 'skip',
   defaultRequirePlanApproval: false,
   defaultAIProfileId: null,
   muteDoneSound: false,
-  enhancementModel: "sonnet",
+  enhancementModel: 'sonnet',
   keyboardShortcuts: DEFAULT_KEYBOARD_SHORTCUTS,
   aiProfiles: [],
   projects: [],
@@ -411,9 +430,9 @@ export const DEFAULT_GLOBAL_SETTINGS: GlobalSettings = {
 export const DEFAULT_CREDENTIALS: Credentials = {
   version: 1,
   apiKeys: {
-    anthropic: "",
-    google: "",
-    openai: "",
+    anthropic: '',
+    google: '',
+    openai: '',
   },
 };